1: #define PETSC_USE_FORTRAN_MODULES

  3:         module petscmatdef
  4:         use petscvecdef
  5: #include <petsc/finclude/petscmat.h>
  6: #include <petsc/finclude/ftn-custom/petscmatdef.h90>
  7:         end module

  9:         module petscmat
 10:         use petscmatdef
 11:         use petscvec
 12: #include <petsc/finclude/petscmat.h90>
 13:         end module